The effect of gaseous SO2 secondary sintering on the cement composition and crystal structure

Rui Kang; Tao Xing; Suhua Ma; Huihua Min; Hao Zhou; Xiaodong Shen; Jinfeng Sun

doi:10.1016/j.conbuildmat.2021.122872

The effect of gaseous SO₂ secondary sintering on the cement composition and crystal structure

Rui Kang, Tao Xing, Suhua Ma, Huihua Min, Hao Zhou, Xiaodong Shen, Jinfeng Sun

College of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

This paper explored the influence of gaseous SO₂ at different temperatures on the composition and structure of the secondary sintered cement clinker. The combination of X-ray powder diffraction (XRD) and rietveld refinement was used to study the composition and content changes of clinker phase. The morphology and clinker sintering history of the clinker phase were determined by the petrographic analysis. The structure of alite was identified by XRD and transmission electron microscopy (TEM) analysis. The experimental results showed that the presence of gaseous SO₂ promoted the decomposition of alite and increased the value of M1-alite%/(M1-alite% + M3-alite%). The hydration exothermic curve showed that the activity of M1-alite was higher than that of M3-alite.

Original language	English
Article number	122872
Journal	Construction and Building Materials
Volume	285
DOIs	https://doi.org/10.1016/j.conbuildmat.2021.122872
State	Published - 24 May 2021

Keywords

Alite
Cement clinker
Gas–solid reaction
Structure
TEM analysis

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10.1016/j.conbuildmat.2021.122872

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title = "The effect of gaseous SO2 secondary sintering on the cement composition and crystal structure",

abstract = "This paper explored the influence of gaseous SO2 at different temperatures on the composition and structure of the secondary sintered cement clinker. The combination of X-ray powder diffraction (XRD) and rietveld refinement was used to study the composition and content changes of clinker phase. The morphology and clinker sintering history of the clinker phase were determined by the petrographic analysis. The structure of alite was identified by XRD and transmission electron microscopy (TEM) analysis. The experimental results showed that the presence of gaseous SO2 promoted the decomposition of alite and increased the value of M1-alite%/(M1-alite% + M3-alite%). The hydration exothermic curve showed that the activity of M1-alite was higher than that of M3-alite.",

keywords = "Alite, Cement clinker, Gas–solid reaction, Structure, TEM analysis",

author = "Rui Kang and Tao Xing and Suhua Ma and Huihua Min and Hao Zhou and Xiaodong Shen and Jinfeng Sun",

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doi = "10.1016/j.conbuildmat.2021.122872",

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T1 - The effect of gaseous SO2 secondary sintering on the cement composition and crystal structure

AU - Kang, Rui

AU - Xing, Tao

AU - Ma, Suhua

AU - Min, Huihua

AU - Zhou, Hao

AU - Shen, Xiaodong

AU - Sun, Jinfeng

PY - 2021/5/24

Y1 - 2021/5/24

N2 - This paper explored the influence of gaseous SO2 at different temperatures on the composition and structure of the secondary sintered cement clinker. The combination of X-ray powder diffraction (XRD) and rietveld refinement was used to study the composition and content changes of clinker phase. The morphology and clinker sintering history of the clinker phase were determined by the petrographic analysis. The structure of alite was identified by XRD and transmission electron microscopy (TEM) analysis. The experimental results showed that the presence of gaseous SO2 promoted the decomposition of alite and increased the value of M1-alite%/(M1-alite% + M3-alite%). The hydration exothermic curve showed that the activity of M1-alite was higher than that of M3-alite.

AB - This paper explored the influence of gaseous SO2 at different temperatures on the composition and structure of the secondary sintered cement clinker. The combination of X-ray powder diffraction (XRD) and rietveld refinement was used to study the composition and content changes of clinker phase. The morphology and clinker sintering history of the clinker phase were determined by the petrographic analysis. The structure of alite was identified by XRD and transmission electron microscopy (TEM) analysis. The experimental results showed that the presence of gaseous SO2 promoted the decomposition of alite and increased the value of M1-alite%/(M1-alite% + M3-alite%). The hydration exothermic curve showed that the activity of M1-alite was higher than that of M3-alite.

KW - Alite

KW - Cement clinker

KW - Gas–solid reaction

KW - Structure

KW - TEM analysis

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DO - 10.1016/j.conbuildmat.2021.122872

M3 - 文章

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SN - 0950-0618

VL - 285

JO - Construction and Building Materials

JF - Construction and Building Materials

M1 - 122872

ER -

The effect of gaseous SO₂ secondary sintering on the cement composition and crystal structure

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Keywords

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